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Questions tagged [database]

A set of chess games, distributed as a stand-alone product or as part of a bundle of chess software. For endgame databases, use the [tablebases] tag instead.

In chess, a database is a set of chess games, distributed as a stand-alone product or as part of a bundle of chess software. For endgame databases, use the [tablebases] tag instead.

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What is the average length of a game of chess?

I hope this is an appropriate question for this site as I've been wanting a reputable answer. Of course the length of games can vary wildly, but what is the expected number of moves until either a checkmate or trivial draw position is reached?…
Zong
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How can someone find their Morphy number?

The Morphy number is a measure of how closely a chess player is connected to Paul Morphy (1837–1884) by way of playing chess games. It's analogous to the Erdős Number for mathematicians. People who played a chess game with Morphy have a Morphy…
Laska
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Where did ChatGPT get this game from?

Seeing Ding Liren playing the French, I asked ChatGPT for an example of a game he played with this opening: Can you give me an example of Ding Liren playing the French defence? ChatGPT replied: Certainly! Here is an example of Ding Liren playing…
Rebecca J. Stones
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Database of every possible move in chess

Imagine that there is a chess database of every possible move and position. This database contains all possible moves from opening to end game. If I played using my intuition against a chess engine, it can predict which move will make me lose and…
Ahmad Azwar Anas
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What is Syzygy tablebases?

I just want to know in simple language exactly, What the Syzygy tablebases are, Why they are used, What are their advantages, disadvantages?
R K
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Chess Problem Database with PGN or FEN

Is there a database of chess probpems that have the game or positions PGN and or FEN?
Ludwig
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What are the biggest free chess game databases? Is it legal to download games from them?

Are there some free chess game databases where it is possible and allowed to download games? Is it possible to use this information for my own purposes? For example, would be allowed to make a machine learning app that learned from the downloaded…
Superluminal
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Free chess match database

I'm working on a rating/ranking algorithm and I'm finally at a point where I can test some hypothesis but in order to do so I need real data. To be honest almost any board game could be used for this but I thought that chess is the board game with…
user834
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Is the Grand Prix Attack a poor response to the Sicilian?

The Grand Prix Attack begins 1. e4 c5 2. Nc3 Nc6 3. f4. It is an anti-Sicilian for white that is popular among club players because playing it requires memorizing significantly less theory than the open Sicilian. However, I wonder if playing it is a…
Potato
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How can I get a collection of chess games with a 'Greek gift' sacrifice?

I would like to make a collection of chess games that feature the 'Greek gift' sacrifice. There are few games on chessgames.com annotated with this sacrifice. I could find blogs with individual examples of games with this type of sacrifice (example:…
user14405
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software to analyze my own database of games with statistics

I've been playing on lichess.org for my online games, and is the primary way I enjoy chess. One of the big reasons why I started playing on lichess.org was that they offer a simple way to export your games from their database into pgn format. So far…
Nebri
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Are there any (free) games databases out there?

I am searching for a broad and extensive games database (i.e. games played between real players.) I can hardly seem to find any (even paid ones.) - However all sorts of chess software has these built in. Where can I get my hands on one? I will use…
SharkX
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Java Library for PGN parser

I would like to find a Java library that will allow me to read a PGN file that could contain several chess games, probably with comments inserted also. But, it won't be used to generate moves or play the moves in a board. I just want to read the PGN…
Chale CS
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Is it legal to use a chess database in correspondence chess?

Someone told me that you can use a chess database for correspondence chess, but this seems a little like cheating. Does anyone has some information on this subject.
CognisMantis
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How do people use chess software to improve their practical skills?

I'm currently using chesstempo to get better at tactics, reading books on strategy, analyzing grandmasters' games, etc. My current rating is around 1800 and I am planning to gain 200-300 points within the next couple of years. I'm considering…
Alex Petrov
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